Consolidated Statements of Shareholders' Equity (USD $)
In Thousands, unless otherwise specified
Total
Preferred Shares
Ordinary Common Shares
Restricted Common Shares
Additional Paid-in Capital
Retained Deficit
Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2012 $ 59,864 $ 18,000 $ 4 $ 14 $ 152,768 $ (112,675) $ 1,753
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income attributable to Atlas 6,180         6,180  
Proceeds from initial public offering, net of offering costs 9,756   16 (10) 9,750    
Issuance of preferred shares 2,000 2,000          
Warrants exercised 7,181   5   7,176    
Other comprehensive loss (3,181)           (3,181)
Repurchase of preferred shares (16,200) (18,000)     1,800    
Issuance of preferred shares 247       247    
Preferred dividends declared and paid (2,145)       (2,145)    
Other (4)   3 (4) (1) (1) (1)
Balance at Dec. 31, 2013 63,698 2,000 28 0 169,595 (106,496) (1,429)
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income attributable to Atlas 17,702         17,702  
Proceeds from initial public offering, net of offering costs 0            
Warrants exercised 0            
Other comprehensive loss 1,509           1,509
Repurchase of preferred shares 0            
Issuance of preferred shares 1,469       1,469    
Issuance of common shares 25,021   6   25,015    
Balance at Dec. 31, 2014 $ 109,399 $ 2,000 $ 34 $ 0 $ 196,079 $ (88,794) $ 80